YoYo Zoom
A yoyo zoom inhales and exhales on the optical axis: a punch then a release, camera body still. One breath, two directions, no dolly.

Narrative function
One axis, two punches. A thought that arrives and leaves, a sting, a joke: crash in, crash out, same breath.
Hold at neither end for long. A funeral may not want it.
A slow zoom that wanders is not a yoyo. Crash zoom in is a one-way punch; this is a punch and a release.
How it works
Locked body, zoom lens. In then out (or out then in) on one axis, short duration.
Comic or violent depending on speed. Prompt: Yo-yo zoom on [Subject], in and out on the same axis, a punch then a release, optical breathing.
When to use it
Use it for a sting or a joke on one optical axis. Do not use a slow hunt and call it a yoyo.
Compared with similar shots
Crash Zoom In is one way in. Crash Zoom Out is one way out.
Zoom is the parent optical change. Yoyo does both in one breath.
A Rapid Zoom In snaps in and holds.
In film
Shaun of the Dead uses snap zooms as comic grammar, including in-and-out breaths. Music videos treat optical breathing as percussion.
Grammar: punch then release, body still.
Prompt it
In then out, one breath. Still: Yo-yo zoom on [Subject], in and out on the same axis, a punch then a release, optical breathing.
Video: The lens zooms in then out on [Subject] in one breath, a yo-yo on the optical axis. No dolly.
Short.
What usually goes wrong
The usual wrong cousin is a slow zoom or a one-way crash. The tell: it never comes back, or it crawls.
The fix: snap both ways on a locked body, no wheels.
Questions
What is YoYo Zoom in film?
A yoyo zoom is an in-then-out (or out-then-in) on the optical axis in one breath, camera body still. A punch and a release.
YoYo Zoom vs Crash Zoom In
A crash zoom in is a one-way punch that holds. A yoyo zoom returns on the same axis in the same breath.
When should I use YoYo Zoom?
Use it for a sting, a joke, or a thought that arrives and leaves. Do not use it as a slow search.
How do I prompt YoYo Zoom for AI image or video?
Write in then out on one axis, body still. Example: Yo-yo zoom on [Subject], in and out on the same axis, a punch then a release, optical breathing.


